package com.exp01.demo.controller;

import org.springframework.boot.CommandLineRunner;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.Arrays;

@RestController
public class HelloController {
    @RequestMapping("/index")
    public String index() {
        return "Hello, Spring Boot!";
    }
    @Bean
    public CommandLineRunner commandLineRunner(ApplicationContext context){
        return args -> {
            System.out.println("由Spring Boot注册的所有Bean：");
            String[] beanNames = context.getBeanDefinitionNames();
            Arrays.sort(beanNames);
            for (String beanName : beanNames){
                System.out.println(beanName);
            }
        };
    }

}
